This lens will please the most discriminating photo enthusiast and pros alike. This lens is just as sharp as the canon lens. The constant F2.8 is a big plus too. I can not say one bad thing about this lens it's that good. Buy one you will love it, and love the $$ you saved.

Quality feel; fast Auto focus and HSM motor; Tripod collar; case and Sigma warrantee

None noted

The new Sigma 70-200mm/f2.8 APO DG HSM with optical stabilizer (OS) is an updated version for the popular fast 70-200mm zoom. For the first time from a third-party lens supplier, a 70-200mm, f/2.8 zoom has optical image stabilization.

Daniel Lezano puts Sigma's fast telezoom through its paces Guide Price: £1,540 / Street Price: £1,000 construction: 22 elements in 17 groups Maximum aperture: f/2.8 Minimum aperture: f/22 Filter thread: 77mm Angle of view: 34.3º – 12.3º No.

My second Sigma 70-200 F/2.8 and now with OS (Image Stabilized). Sigma made some really important and necessary improvements. I loved the previous version but there were some issues with micro contrast and slight CA. But it was such a tremendous value.

Image Stabilizer; Fast Aperture; Comparable quality to Canon and Nikon equivalents; Quick Release Tripod Ring; Large Zoom Ring

Noisy IS which takes a second or two to activate; heavy; not weather proofed

I purchase this Sigma 70-200mm lens as a replacement for my Canon 70-200mm lens without stabilize capabilities. WOW, what a amazing lens, on my first day of purchasing it I went out to back country National park area,I guess I can call it my lucky lens.

Produces great colours and the focus is pretty fast, however can be a little inaccurate or miss read the subject. at 2.8f the background blur is beautiful! I would definitely recommend this as a economical option to the Nikon version with cost double.

Buy it for the cost, love it for it ability to take great photos.

Lower cost than Canon lens; 4 year warranty ; awesome pictures

High cost

In terms of overall performance there's no beating the Canon and Nikon 70-200mm lenses. They do the best job of focusing on fast-moving subjects. However, this Sigma isn't too far behind when it comes to tracking movement.

I am a professional wedding photographer, and my Canon 70-200 2.8L IS had pretty much run its course, and I was no longer happy with the image quality. I didn't want to spend over $2000 on a replacement, as I am primarily a prime lens shooter and my 135mm produces images just as sharp as the new...

My second Sigma 70-200 F/2.8 and now with OS (Image Stabilized). Sigma made some really important and necessary improvements. I loved the previous version but there were some issues with micro contrast and slight CA. But it was such a tremendous value.

Image Stabilizer; Fast Aperture; Comparable quality to Canon and Nikon equivalents; Quick Release Tripod Ring; Large Zoom Ring

Noisy IS which takes a second or two to activate; heavy; not weather proofed